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Old 07-25-2013, 11:03 PM #1
Ego_2k4
 
 
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Join Date: Dec 2004
Location: Texas
PMI Trracer Spring/Velocity help

Just have slightly velocity issues, my trracer is shooting just over 300, 306-311. I think i have a cut down spyder spring for the bolt spring and a hard autococker valve spring (from the maddman kit possibly) for the valve. To get the gun under 300 should I cut the valve spring a little bit or cut the bolt spring?
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Old 07-28-2013, 05:14 PM #2
grendal50
 
 
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Join Date: Nov 2007
Cut the bolt spring, or you just shim the valve spring with a washer.
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